Andreas Kling 1381720d1d UserspaceEmulator: Don't assume entire malloc block is chunked ...

Accesses in the header (or trailing padding) of a malloc block should
not be associated with any mallocation since only the chunk-sized slots
actually get returned by malloc.

Basically, allow address-to-chunk lookup to fail, and handle such
failures gracefully at call sites.

Fixes #5706.

2021-03-09 13:29:41 +01:00

3.6 KiB

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